河池市某砒霜厂污染土壤固化稳定化修复工程实例肖友程

36320183EnvironmentalEngineeringVol．36No．3Mar．2018/12121212121.1000152.100015/。、。ⅠⅡ/。/。/、/Ⅰ。。/DOI10.13205/j．hjgc．201803035PＲOJECTCASEOFSOLIDIFICATION/STABILIZATIONOFHEAVYMETALCONTAMINATEDSOILSINANAＲSENICFACTOＲYOFHECHICITYXIAOYou-cheng12XUChao12WANGYang12WUGuang-sui12ZHOUQiang121.BeijingConstructionEngineeringEnvironmentalＲemediationCo．LtdBeijing100015China2.NationalEngineeringLaboratoryforSiteＲemediationTechnologiesBeijing100015ChinaAbstractThispaperintroducedtheremediationofheavymetalcontaminatedsoilinarsenicfactorybyusingsolidificationandstabilizationtechnology．Thecontaminationlevelofthesitethetargetvaluesandthequantitiesoftheprojectweredeterminedbyconductinginvestigationandriskassessment．Aftercomparisonthetechnicalroutewasdetermined．Thehazardouswastewastreatedbyaqualifiedsolidwastedisposalcenter．GeneralindustrialsolidwasteIwastransportedtoalandfills．GeneralindustrialsolidwasteⅡwasremediatedtogeneralindustrialsolidwasteIstandardbysolidification/stabilizationtechnology．Thedosingratiooflimeandagentwasdeterminedthroughlab-scaleexperiments．Theresultwasappliedtotheengineeringpractice．Athird-partyinspectioninstitutionperformedbothdetectionandanalysisafterfinishedtheremediation．ItwasconfirmedthatthetreatedsoilreachedcategoryIofgeneralindustrialsolidwastestandandwhichcouldbedisposedinasecurelandfill．Successfulimplementationofthisprojectshowedthattheheavymetalcontaminatedsoilwasremediatedeffectivelywhichcouldprovidereferenceforothersimilarprojects．Keywordsarsenicfactorysoilremediationsolidification/stabilizationsecurelandfill2017－06－260208090、、。As4S4As2O3。、、、1-3。2090。、、。。3/。、、、、4。120901996。/。、/、、。1.1。。。3、、。0.1～5.0m16414。、、、97.6%29300mg/kg1465、17.1%、9.8%、4.9%。1.25、。/、、、GB18599—2001《、》IHJ557—2010《》pH6～9GB8978—1996《》Ⅰ6。1。1Table1Thetargetvaluesofsoilremediation/mg·kg－1/mg·L－1As47.80.5Cd100.1Pb5001Zn50021.3ArcGis10～1m21～5.0m2。2Table2Thestatisticaltableofvolumeoftheprojectm3/ⅠⅡⅠⅡⅠⅡ919732397.54137.53393.67634.02199.3413808.122.1Ⅱ。、、、、/、7-8、、/Ⅱ、。//、9-10。/、、。//11。2.2、3、ⅠⅡ1。77136ⅠⅡ/Ⅰ。1Fig．1Thetechnologyroadmapofsoilremediation2.3//pH7/12。1%、2%、3%pH2%。pH/0、1%、3%、5%、7%、9%、11%、13%15%9//7%。33.1→→→→→→→→→。、。、ⅠⅡ。3.2ⅡⅡ/2。3.2.1/pH。/2/Fig．2Theflowchartofsolidification/stabilization＞5cm/＜5cm//。2%/pH//。3.2.2/////。//7%//13。3.2.3//。//90%。3.2.4//500m31。。/GB8978—1996。3.2.5/。3.33.3.1/8713/。3.3.2//。3.3.3Ⅱ。、。/。3.3.4//。。4/ⅡⅠ。1。《》、《》2119。/Ⅱ500m3114。/3。3Table3Leachingtoxicityresultsofcontaminatedsoilmg/LPHQCSS-H10.13ND0.2561.1676.64QCSS-H20.280.0430.1681.2246.89QCSS-H30.270.0370.2051.1197.01QCSS-H40.170.011ND1.5896.56QCSS-H50.150.022ND1.3566.78QCSS-H60.340.0400.1661.1697.11QCSS-H70.220.0490.3211.1087.21QCSS-H80.190.0570.2290.9086.95QCSS-H/500m218ND。//pH。51、Ⅰ、Ⅱ13808.1m3。22%7%。3/、。4/。/+。1．J．201036429-31．2．J．201441051-53．3．J．200937146587-6589．4．J．2013388127-130．5．HJ25.3—2014S．2014．6．GB8978—1996S．1996．7．J．2003653-56．8NikolicaVKomljenoviaMMarjanoviaNetal．LeadimmobilizationbygeopolymersbasedonmechanicallyactivatedflyashJ．CeramInt201440684799．HJ25.4—2014S．2014．10．/J．2015431528-33．11．－/D．2010．12．J．201338594-97．13．J．201331151-155．14．HJ25.2—2014S．2014．1989－。[e-mail]971